A number is divisible by 2 if its unit digit is any of 0,2,4,6,8.
2. Divisibility by 3:
A number is divisible by 3 only when the sum of its digits is divisible by 3.
3. Divisibility by 4:
A number is divisible by 4 if the sum of its last two digits is divisible by 4.
4. Divisibility by 5:
A number is divisible by 5 only when its unit digit is 0 or 5.
5. Divisibility by 8:
A number is divisible by 8 if the number formed by hundred’s, ten’s and unit’s digit of the given number is divisible by 8.
6. Divisibility by 9:
A number is divisible by 9 only when the sum of its digits is divisible by 9.
7. Divisibility by 10:
A number is divisible by 10 only when its unit digit is 0.
8. Divisibility by 11:
A number is divisible by 11 if the difference between the sum of its digits at odd places and the sum of its digits at even places is either 0 or a number divisible by 11.
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